TRANE BAYENTH323 Packaged Rooftop Units with Low Leak Economizer Installation Guide

BAYENTH323 Packaged Rooftop Units with Low Leak Economizer

“`html

Specifications

• Model Number: BAYENTH323*
• Used With: E/GB036-060 E/GD036-060
• Capacity: 3 to 5 Tons
• Economizer Type: Low Leak Economizer

Product Usage Instructions

Installation Instructions

Only qualified personnel should install and service the
equipment. Improper installation, adjustment, or alteration by an
unqualified person can result in serious injury or death. Always
observe precautions in the literature and on equipment labels.

General Information

Inspection:

1. Check for shipping damage and report immediately if found.
2. Verify the correct accessory received by comparing order number
   with shipping documents.

Field Installed Economizer

Table 1. Parts List:

• Outside Air Temperature/Humidity Sensor – Quantity: 1
• Return Air Temperature/Humidity Sensor – Quantity: 1
• Screws 6-32 x 0.75 – Quantity: 4
• Harness; Wire – OA Humidity Sensor – Quantity: 1
• Harness; Wire – RA Humidity Sensor – Quantity: 1
• Installed Accessory Label – Quantity: 1
• Screws; 6-32 x 0.75 THD ROLL – Quantity: 4

Warnings, Cautions, and Notices

Important Environmental Concerns:

Follow responsible refrigerant practices to minimize
environmental impact.

Proper Field Wiring and Grounding:

All field wiring must be performed by qualified personnel to
avoid fire and electrocution hazards. Follow NEC and local
electrical codes.

Personal Protective Equipment (PPE)
Required:

Always wear proper PPE to prevent potential hazards from
electrical, mechanical, and chemical exposure.

Follow EHS Policies:

Adhere to Environmental, Health, and Safety (EHS) policies to
ensure personal safety and prevent accidents.

FAQ

Q: Can unqualified individuals install the equipment?

A: No, only qualified personnel should install and service the
equipment to prevent serious injury or death.

Q: What should be done if shipping damage is found?

A: Report it immediately and file a claim against the
transportation company. Replace damaged parts with authorized parts
only.

Q: Why is proper field wiring and grounding crucial?

A: Improperly installed and grounded field wiring poses fire and
electrocution hazards. Follow NEC and local electrical codes for
safety.

“`

Installation Instructions
Comparative Enthalpy
FoundationTM Packaged Rooftop Units with Low Leak Economizer 3 to 5 Tons

Model Number: BAYENTH323*

Used With: E/GB036-060 E/GD036-060

SAFETY WARNING
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air- conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are attached to the equipment.

August 2024

ACC-SVN206D-EN
©2024

4
General Information
Inspection
1. Check carefully for shipping damage. If any damage is found, report it immediately, and file a claim against the transportation company. Replace damaged parts with authorized parts only.
2. Compare the order number on the shipping label with the accessory identification information on the ordering and shipping documents to verify that the correct accessory has been received.

Field Installed Economizer

Table 1. Parts list
Quantity 1 1 4 1 1 1 4

Description Outside Air Temperature/Humidity Sensor Return Air Temperature/Humidity Sensor
Screws 6-32 x 0.75 Harness; Wire – OA Humidity Sensor Harness; Wire – RA Humidity Sensor
Installed Accessory Label Screws; 6-32 x 0.75 THD ROLL

1
Warnings, Cautions, and Notices
Read this manual thoroughly before operating or servicing this unit. Safety advisories appear throughout this manual as required. Your personal safety and the proper operation of this machine depend upon the strict observance of these precautions.

The three types of advisories are defined as follows:

WARNING

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury. It could also be used to alert against unsafe practices.

NOTICE

Indicates a situation that could result in equipment or property-damage only accidents.

Important Environmental Concerns
Scientific research has shown that certain man-made chemicals can affect the earth’s naturally occurring stratospheric ozone layer when released to the atmosphere. In particular, several of the identified chemicals that may affect the ozone layer are refrigerants that contain Chlorine, Fluorine and Carbon (CFCs) and those containing Hydrogen, Chlorine, Fluorine and Carbon (HCFCs). Not all refrigerants containing these compounds have the same potential impact to the environment. Trane advocates the responsible handling of all refrigerants.
Important Responsible Refrigerant Practices
Trane believes that responsible refrigerant practices are important to the environment, our customers, and the air conditioning industry. All technicians who handle refrigerants must be certified according to local rules. For the USA, the Federal Clean Air Act (Section 608) sets forth the requirements for handling, reclaiming, recovering and recycling of certain refrigerants and the equipment that is used in these service procedures. In addition, some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants. Know the applicable laws and follow them.

2
WARNING
Proper Field Wiring and Grounding Required!
Failure to follow code could result in death or serious injury. All field wiring MUST be performed by qualified personnel. Improperly installed and grounded field wiring poses FIRE and ELECTROCUTION hazards. To avoid these hazards, you MUST follow requirements for field wiring installation and grounding as described in NEC and your local/state/national electrical codes.
WARNING
Personal Protective Equipment (PPE) Required!
Failure to wear proper PPE for the job being undertaken could result in death or serious injury. Technicians, in order to protect themselves from potential electrical, mechanical, and chemical hazards, MUST follow precautions in this manual and on the tags, stickers, and labels, as well as the instructions below:
· Before installing/servicing this unit, technicians MUST put on all PPE required for the work being undertaken (Examples; cut resistant gloves/sleeves, butyl gloves, safety glasses, hard hat/bump cap, fall protection, electrical PPE and arc flash clothing). ALWAYS refer to appropriate Safety Data Sheets (SDS) and OSHA guidelines for proper PPE.
· When working with or around hazardous chemicals, ALWAYS refer to the appropriate SDS and OSHA/GHS (Global Harmonized System of Classification and Labeling of Chemicals) guidelines for information on allowable personal exposure levels, proper respiratory protection and handling instructions.
· If there is a risk of energized electrical contact, arc, or flash, technicians MUST put on all PPE in accordance with OSHA, NFPA 70E, or other countryspecific requirements for arc flash protection, PRIOR to servicing the unit. NEVER PERFORM ANY SWITCHING, DISCONNECTING, OR VOLTAGE TESTING WITHOUT PROPER ELECTRICAL PPE AND ARC FLASH CLOTHING. ENSURE ELECTRICAL METERS AND EQUIPMENT ARE PROPERLY RATED FOR INTENDED VOLTAGE.

3
WARNING
Follow EHS Policies!
Failure to follow instructions below could result in death or serious injury.
· All Trane personnel must follow the company’s Environmental, Health and Safety (EHS) policies when performing work such as hot work, electrical, fall protection, lockout/tagout, refrigerant handling, etc. Where local regulations are more stringent than these policies, those regulations supersede these policies.
· Non-Trane personnel should always follow local regulations.
WARNING
R-454B Flammable A2L Refrigerant!
Failure to use proper equipment or components as described below could result in equipment failure, and possibly fire, which could result in death, serious injury, or equipment damage. The equipment described in this manual uses R-454B refrigerant which is flammable (A2L). Use ONLY R-454B rated service equipment and components. For specific handling concerns with R-454B, contact your local representative.
Copyright
This document and the information in it are the property of Trane, and may not be used or reproduced in whole or in part without written permission. Trane reserves the right to revise this publication at any time, and to make changes to its content without obligation to notify any person of such revision or change.
Trademarks
All trademarks referenced in this document are the trademarks of their respective owners.

5
Installation Procedure
Outside Air Temperature/Humidity Sensor ­ Downflow Units
1. Remove access panels. See Figure 1. Figure 1. Remove access panels

6
2. Remove existing outside air temperature (OAT) sensor and disconnect OAT sensor harness from the OAT pin of the controller. See Figure 2. Discard existing OAT sensor and OAT harness.
Figure 2. Remove sensor

7
3. Remove the new outside air temperature/humidity (OAE) sensor from box and verify DIP switch settings are set to OA per the label on the sensor. See Figure 3.
Note: The protective film on the DIP switch is only necessary during the assembly process. Push through the film to set the DIP switches. This will not harm the device.
Figure 3. Verify DIP switches on new sensor

Outside Air Sensor

Note: The new sensor in this kit reads both temperature and humidity. The existing OAT sensor harness must be removed from the OAT pin on the controller or the controller will display a configuration error.

8

Table 2. Sensor DIP switch positions for switches 1, 2, and 3

Use

1

2

3

RA

ON

OFF

OFF

OA

OFF

OFF

OFF

4. Secure OAE sensor to LLE panel using the screws provided in this kit as shown in Figure 4.
Figure 4. Attach outside air humidity sensor

9
7. Connect OAE wire harness to economizer controller S-BUS pin per unit wiring diagram as shown in Figure 5.
Figure 5. Wire routing and connections – outdoor air

Pop-in wire tie (Outdoor Air Humidity/Temperature Sensor Wire Harness)

Outdoor Air Humidity/Temperature Sensor Wire Harness

Snap Bush for Return Air Harness

Outdoor Air Humidity/ Temperature Sensor Controller End Connection

Return Air Humidity/ Temperature Sensor Controller End Connection

10 Outside Air Temperature/Humidity Sensor ­ Horizontal Units
1. Remove existing outside air temperature (OAT) sensor and disconnect OAT sensor harness from the OAT pin of the controller. See Figure 6. Discard existing OAT sensor and OAT harness.
Figure 6. Remove OAT
Outside Air Sensor

11
3. Secure OAE sensor to LLE panel using the screws provided in this kit as shown in Figure 7.
Figure 7. Attach outside/return air humidity sensor

Return Air Humidity/ Temperature Sensor End Connection

Outdoor Air Humidity/ Temperature Sensor End Connection

Return Air Humidity/ Temperature Sensor

Outside Air Humidity/ Temperature Sensor

5. Connect OAE sensor harness (shorter of the two wire harnesses provided in this kit) to S-BUS pins on the sensor and route through bushing in the LLE panel. See Figure 4.
Note: Polarity insensitive connections.
6. Route harness to controller using pop in wire ties provided in locations shown in Figure 5.

Pop-in wire tie (Return Air Humidity/ Temperature Sensor Wire Harness)

Snap Bush for Return Air Harness

Note: The labels on the sensors and controller are color coded for ease of installation. Orange labeled sensors can only be wired to orange terminals on the controller. Brown labeled sensors can only be wired to the S-BUS (brown) terminals.

2. Remove the new outside air temperature/humidity (OAE) sensor from box and verify DIP switch settings are set to OA per the label on the sensor. See Figure 3.

4. Connect OAE sensor harness (shorter of the two wire harnesses provided in this kit) to S-BUS pins on the sensor and route through bushing in the LLE panel. See Figure 8.

12
Figure 8. Wire routing and connections – return air
Pop-in Wire Tie (Return air Humidity/Temperature Sensor Wire Harness)

Pop-in Wire Tie (Return air Humidity/ Temperature Sensor Wire Harness)

Pop-in Wire Tie (Outdoor air Humidity/ Temperature Sensor Wire Harness)
Snap Bush (Outdoor Air Harness)

13
Return Air Temperature/Humidity Sensor
Installation ­ Downflow Units
1. Remove remaining new temperature/humidity sensor from box and set DIP switch setting for RA for return air temperature/humidity sensor (RAE) per label on sensor. See Figure 3.
Note: The protective film on the DIP switch is only necessary during the assembly process. Simply push through the film to set the DIP switches; this will not harm the device. 2. Secure the RAE sensor to the return air LLE side panel using two screws
provided. See Figure 9.

14
Figure 9. Secure RAE sensor

Return Air Humidity/Temperature Sensor End Connection

Return Air Temperature/Humidity Sensor

15
3. Connect RAE sensor harness (longer of the two wire harnesses provided in this kit) to the return air sensor and route wire through bushing.
4. Connect harness to controller on an available S-BUS pin per unit wiring diagram. See Figure 5.
Installation ­ Horizontal Units
1. Follow instruction same as downflow unit and secure RAE sensor to return air LLE side panel using two screws provided. See Figure 7.
2. Connect RAE sensor harness (longer of the two wire harnesses provided in this kit) to the return air sensor and route wire through bushing and wire ties as shown in Figure 8.
3. Connect harness to controller on an available S-BUS pin per unit wiring diagram. See Figure 8.

Outdoor air Humidity/Temperature Sensor Controller End Connection

Return air Humidity/Temperature Sensor Controller End Connection

Trane and American Standard create comfortable, energy efficient indoor environments for commercial and residential applications. For more information, please visit trane.com or americanstandardair.com.

Trane and American Standard have a policy of continuous product and product data improvement and reserve the right to change design and specifications without notice. We are committed to using environmentally conscious print practices.

ACC-SVN206D-EN 23 Aug 2024 Supersedes ACC-SVN206C-EN (Jul 2024)

©2024

References

• American Standard® | Air Conditioning and Heating | HVAC Systems
• Trane Heating & Air Conditioning

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>